be honest and talk to your dad first show him a video of what a good powerglide tranny is all about and back it up with how common it is for very successful people to be discretely flicking paddle shifters nowadays let him know that youre not spending all day rowing through gears and grinding inappropriately like those trannys of yesteryear who give the rest of them a bad name and that not all clutches are aggressive and grabby theyre the minority but the media portrays them that way times have changed and trannys arent what they used to be theyre a lot more refined and reliable the dislike for trannys comes from ignorance educating your parents is the only chance at getting them to accept things